HTML5 canvas

When I go to my page with HTML5 canvas it loads into the preloader and I get this message in the Chrome console.

createjs-2015.11.26.min.js:12 Uncaught TypeError: Cannot read property 'getContext' of undefined
at a.b._parseData (createjs-2015.11.26.min.js:12)
at new a (createjs-2015.11.26.min.js:12)
at handleComplete (me13.html:52)
at me13.html:37
at a.b._dispatchEvent (createjs-2015.11.26.min.js:12)
at a.b.dispatchEvent (createjs-2015.11.26.min.js:12)
at a.b._sendComplete (createjs-2015.11.26.min.js:15)
at a.b._loadNext (createjs-2015.11.26.min.js:15)
at a.b._handleError (createjs-2015.11.26.min.js:15)
at createjs-2015.11.26.min.js:12

But when I refresh and reload it works. Is there anything to do about it.